JP2022541785A - The camera module - Google Patents

Abstract

a lens assembly disposed on the housing; a first drive section disposed on the lens assembly; a second drive section disposed on the housing and facing the first drive section; a sensor magnet extending in the direction of the optical axis; and a plurality of sensors disposed in the housing and facing the sensor magnet, the sensor magnet extending in a first direction perpendicular to the lens assembly and the direction of the optical axis. , the camera modules overlapped in a second direction perpendicular to the optical axis direction and the first direction.

Description

The present invention relates to camera modules.

The camera module captures an object and saves it as an image or video, and is installed in mobile terminals such as mobile phones, notebooks, drones, and vehicles.

On the other hand, portable devices such as smartphones, tablet PCs, and notebooks have built-in ultra-compact camera modules. Such camera modules automatically adjust the distance between the image sensor and the lens to focus the lens. An autofocus (AF) function that aligns the distance can be performed.

Recently, a camera module performs a zooming function of zooming up or zooming out by increasing or decreasing the magnification of a distant object through a zoom lens. can be done.

In recent years, camera modules have adopted image stabilization (IS) technology to correct or prevent camera shake caused by camera movement caused by an unstable fixed device or user movement. .

Such anti-shake (IS) techniques include an optical image stabilizer (OIS) technique and an anti-shake technique using an image sensor.

The OIS technology is a technology that corrects motion by changing the path of light, and the anti-shake technology using an image sensor is a technology that corrects motion using a mechanical method and an electronic method. technology is being adopted more and more.

On the other hand, a camera module uses a zoom actuator for a zooming function. Frictional torque is generated when the lens is moved due to the mechanical movement of the actuator. Technical problems such as reduction, increase in power consumption or deterioration of control characteristics are occurring.

In particular, in order to obtain the best optical characteristics using a plurality of zoom lens groups in a camera module, alignment between the lens groups and alignment between the lens groups and the image sensor are required. It is preferable that the two are well aligned, but the angle of view when the center of the spherical surface between the lens groups deviates from the optical axis, the tilt phenomenon that is a lens tilt phenomenon, and the phenomenon that the central axis of the lens group and the image sensor are not aligned changes in focus or out of focus, which adversely affects image quality and resolution.

On the other hand, when increasing the separation distance in the area where friction is generated in order to reduce the frictional torque resistance during lens movement for the zooming function of the camera module, lens eccentricity (dent) or lens eccentricity may occur during zoom movement or zoom movement reversal. There is a technical contradiction that aggravates lens tilt.

On the other hand, as the number of pixels of an image sensor increases, the resolution increases and the size of pixels decreases. Therefore, in a dark environment, the higher the resolution of the camera, the more severe the shake of the image due to the shaking of the hand, which appears while the shutter speed is slow.

For this reason, the OIS function has been indispensably adopted in recent years in order to capture distortion-free images using a high-pixel camera in the dark at night or in motion pictures.

On the other hand, OIS technology corrects image quality by moving the camera lens or image sensor to correct the optical path. It detects movement and calculates the distance that the lens and image sensor should move based on this.

For example, the OIS correction method includes a lens movement method and a module tilting method. The lens movement method moves only the lens inside the camera module to realign the center of the image sensor and the optical axis. On the other hand, the module tilting method moves the entire module including the lens and image sensor.

In particular, the module tilting method has a wider correction range than the lens moving method and has the advantage of minimizing image distortion because the focal length between the lens and the image sensor is fixed.

Meanwhile, in the case of the lens movement method, a position recognition sensor such as a Hall sensor is used to detect the position and movement of the lens. On the other hand, the module tilting method uses a photo reflector to sense the movement of the module. However, both methods use a gyro sensor to sense the movement of the camera user.

The OIS controller utilizes the data sensed by the gyro sensor to predict where the lens or module should move to compensate for user movement.

In recent years, there has been a demand for ultra-slim and ultra-miniature camera modules. However, there is a problem that the ultra-miniature camera module has a space limitation for driving OIS, which makes it difficult to realize the OIS function that is applied to a normal large camera. , there is a problem that an ultra-slim and ultra-compact camera module cannot be realized when OIS driving is applied.

In addition, in the conventional OIS technology, since the OIS driving unit is arranged on the side of the solid lens assembly within the limited size of the camera module, there is a problem that the size of the lens to be OIS is limited, making it difficult to secure the amount of light. .

In particular, in order to achieve the best optical characteristics in a camera module, the alignment between lens groups should be well aligned when implementing OIS through lens movement and module tilting. When the center of the inter-group sphere deviates from the optical axis, or tilt occurs, the angle of view changes or defocus occurs, which adversely affects image quality and resolution. there is

In addition, with the conventional OIS technology, it is possible to achieve AF or Zoom at the same time as driving OIS, but due to the space restrictions of the camera module and the position of the driving part of the conventional OIS technology, the magnet for OIS and the magnet for AF or Zoom are close to each other. This arrangement causes magnetic field interference, and OIS driving is not properly performed, causing a problem of eccentricity and tilt.

In addition, the conventional OIS technique requires a mechanical driving device for moving the lens and tilting the module, which results in a complicated structure and high power consumption.

In contrast, the material set forth in the section merely provides background information to the present disclosure and may not constitute prior art.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a camera module capable of improving sensitivity to movement of a lens assembly in the optical axis direction.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a lens assembly driving device and a camera module including the same that can prevent friction torque generated when each lens group is moved through zooming in a camera module.

In addition, the problem to be solved by the present invention is the phenomenon that the center of the lens and the center axis of the image sensor do not coincide with each other, such as lens decentering or lens tilt, when each lens group is moved through zooming in the camera module. It is an object of the present invention to provide a lens assembly driving device and a camera module including the same, which can prevent the occurrence of the

Another object of the present invention is to provide an ultra-slim and ultra-compact lens assembly driving device and a camera module including the same.

In addition, the problem to be solved by the present invention includes a lens assembly driving device and the same that can secure a sufficient amount of light by eliminating the size limitation of the lens in the lens assembly of the optical system when implementing OIS. It is to provide a camera module.

In addition, another object of the present invention is to provide a lens assembly driving device capable of minimizing the occurrence of decentration and tilting when implementing OIS and exhibiting the best optical characteristics, and the same. It is to provide a camera module.

Another object of the present invention is to provide a lens assembly driving device and a camera module including the same that can prevent magnetic field interference with an AF or Zoom magnet when implementing OIS.

Another object of the present invention is to provide a lens assembly driving device capable of realizing OIS with low power consumption and a camera module including the same.

A camera module according to one aspect of the present invention for achieving the above object includes a housing; a lens assembly arranged in the housing; a first driving unit arranged in the lens assembly; a second driving unit facing the first driving unit; a sensor magnet disposed on the lens assembly and extending in an optical axis direction; and a plurality of sensors disposed on the housing and facing the sensor magnet. a sensor, wherein the sensor magnet overlaps the lens assembly in a first direction perpendicular to the optical axis direction and a second direction perpendicular to the optical axis direction and the first direction; be.

Also, the length of the optical axis of the sensor magnet may be greater than the movement stroke of the lens assembly.

Also, the plurality of sensors may include a first sensor and a second sensor separated from the first sensor in the optical axis direction.

Also, the sum of the distance between the first sensor and the second sensor and the moving stroke of the lens assembly may correspond to the length of the sensor magnet in the optical axis direction.

Also, a first yoke may be included between the lens assembly and the sensor magnet.

Also, the first yoke may wrap a surface of the sensor magnet except for a surface facing the plurality of sensors.

Also, the lens assembly includes a first lens assembly and a second lens assembly disposed on one side of the first lens assembly, and the sensor magnet is disposed on the first lens assembly. and a second sensor magnet disposed on the second lens assembly, wherein the first sensor magnet and the second sensor magnet are spaced apart in a first direction perpendicular to the optical axis. , can have lengths corresponding to each other.

In addition, the first driving unit includes a 1-1 driving unit arranged in the first lens assembly and a 1-2 driving unit arranged in the second lens assembly, and the second driving unit The section may include a 2-1 driving section facing the 1-1 driving section and a 2-2 driving section facing the 1-2 driving section.

and a second yoke disposed between the lens assembly and the first driving section, wherein the second yoke is disposed between the 1-1 driving section and the first lens assembly. and a 2-2 yoke disposed between the 1-2 driving unit and the second lens assembly.

In addition, the first lens assembly includes a first lens barrel on which a first lens group is disposed, and a first side surface disposed on one side of the first lens barrel, and the second lens assembly includes: a second lens barrel in which a second lens group is arranged; and a second side surface arranged on the other side of the second lens barrel, wherein the 1-1 driving section is arranged on the first side surface to The 1-2 driving part is disposed on the second side, the first sensor magnet is disposed in a space between the first lens barrel and the first side, and the second sensor magnet is , in a space between the second lens barrel and the second side.

Also, the first lens barrel and the second lens barrel may each be formed in a cylindrical shape, and the first side surface and the second side surface may be formed in a rectangular plate shape.

a first guide part disposed in the housing and in contact with the first side surface of the first lens assembly to guide movement of the first lens assembly in the optical axis direction; A second guide part may be included that contacts the second side surface of the second lens assembly and guides the movement of the second lens assembly along the optical axis.

The 2-1 driving part may be arranged at the first guide part, and the 2-2 driving part may be arranged at the second guide part.

Further, the length of the first side surface of the first lens assembly in the optical axis direction is greater than the sum of the length of the first lens barrel in the optical axis direction and the length of the second lens barrel in the optical axis direction. , the length in the optical axis direction of the second side surface of the second lens assembly is greater than the sum of the length in the optical axis direction of the first lens barrel and the length in the optical axis direction of the second lens barrel; good.

The plurality of sensors may include a 1-1 sensor facing the first sensor magnet, a 2-1 sensor separated from the 1-1 sensor in the optical axis direction, and a second sensor magnet. A 1-2 sensor facing each other and a 2-2 sensor spaced apart from the 1-2 sensor in the optical axis direction may be included.

Also, the lens assembly includes a third lens assembly disposed on the other side of the first lens assembly and coupled to the housing, wherein the first lens assembly and the second lens assembly are: Each can move in the optical axis direction with respect to the third lens assembly to realize a zooming function.

A substrate disposed on the housing may also be included, and the plurality of sensors may be disposed on the substrate.

Also, the distance between the sensor magnet and the center of the lens assembly may be shorter than the distance between the first driving unit and the center of the lens assembly.

A camera module according to one aspect of the present invention for achieving the above object includes a housing; a lens assembly arranged in the housing; a first driving unit arranged in the lens assembly; a second driving unit facing the first driving unit; a sensor magnet disposed on the lens assembly and extending in an optical axis direction; and a plurality of sensors disposed on the housing and facing the sensor magnet. a sensor, wherein the plurality of sensors includes the first sensor and a second sensor separated from the first sensor in the optical axis direction, the distance between the first sensor and the second sensor and the The total travel stroke of the lens assembly can correspond to the length of the sensor magnet along the optical axis.

A camera module according to one aspect of the present invention for achieving the above object includes a housing; a lens assembly arranged in the housing; a first driving unit arranged in the lens assembly; a second driving unit facing the first driving unit; a sensor magnet disposed on the lens assembly and extending in an optical axis direction; and a plurality of sensors disposed on the housing and facing the sensor magnet. a sensor, wherein the plurality of sensors includes the first sensor and a second sensor spaced apart from the first sensor in the optical axis direction, the length of the sensor magnet in the optical axis direction The distance between the first sensor and the second sensor may be greater than the movement stroke of the lens assembly.

A lens assembly driving device according to one aspect of the present invention for achieving the above object comprises a housing; a first lens assembly arranged in the housing; and one side of the first lens assembly. a second lens assembly; first and second driving units disposed on the housing; a third driving unit disposed on the first lens assembly and facing the first driving unit; a fourth driving portion disposed opposite the second driving portion; and first and second guide portions disposed on the housing, wherein the first lens assembly comprises a first driving portion opposed to the first guide portion. The second lens assembly includes one side and a second side facing the second guide, and the second lens assembly has a first side facing the first guide and a second side facing the second guide. wherein the length in the optical axis direction of the first side surface of the first lens assembly is longer than the length in the optical axis direction of the first side surface of the second lens assembly; The length in the optical axis direction of the second side surface may be shorter than the length in the optical axis direction of the second side surface of the second lens assembly.

Also, the first guide part and the second guide part may be symmetrical with respect to the optical axis.

The first guide part includes a 1-1 guide part and a 1-2 guide part separated from each other, and the second guide part includes a 2-1 guide part and a 2-1 guide part separated from each other. 2 guides may be included.

Further, the length of the 1-1 guide portion in the direction perpendicular to the optical axis direction may be longer than the length of the 1-2 guide portion in the direction perpendicular to the optical axis direction.

Further, the length of the 2-1 guide portion in the direction perpendicular to the optical axis direction may be longer than the length of the 2-2 guide portion in the direction perpendicular to the optical axis direction.

Also, a first guide ball disposed between the first guide portion and the first side surface of the first lens assembly; a second guide ball disposed between; a third guide ball disposed between the first guide part and the first side surface of the second lens assembly; and the second guide part and the second lens A fourth guide ball may be included that is positioned between the second side of the assembly.

The first guide part includes a first groove that contacts the first guide ball and the third guide ball, and the second guide part contacts the second guide ball and the fourth guide ball. The first side of the first lens assembly includes a third groove contacting the first guide ball, and the second side of the first lens assembly includes a second guide ball. including a fourth groove contacting a ball, the first side of the second lens assembly including a fifth groove contacting the third guide ball, the second side of the second lens assembly comprising: A sixth groove contacting the fourth guide ball may be included.

Further, the first groove includes a 1-1 groove formed in the 1-1 guide portion and a 1-2 groove formed in the 1-2 guide portion, and the first guide ball may include a 1-1 guide ball that contacts the 1-1 groove at two points, and a 1-2 guide ball that contacts the 1-2 groove at one point.

Also, the 1-1 groove may be formed in a 'V' shape, and the 1-2 groove may be formed in a 'U' shape.

Further, the third groove includes a 3-1 groove facing the 1-1 groove and a 3-2 groove facing the 1-2 groove, and the 3-1 groove Contacting the 1-1 guide ball at two points, the 3-2 groove may contact the 1-2 guide ball at two points.

Also, the 3-1 and 3-2 grooves may be formed in a 'V' shape.

Also, the first driving part may be disposed between the 1-1 groove and the 1-2 groove.

Also, the first and second guide parts may be integrally formed with the inner surface of the housing.

Also, the housing may have upper and lower surfaces opened to expose the first and second lens assemblies to the outside.

A third lens assembly is disposed on one side of the second lens assembly, and the first and second lenses are assembled after the third lens assembly is first assembled on the side surface of the housing. The assembly can be placed inside the housing.

In addition, the first lens assembly includes a first lens barrel including a plurality of first holes, and a first lens portion disposed in the first lens barrel, and the second lens assembly includes a plurality of second lenses. a second lens barrel including two holes; a second lens portion disposed in the second lens barrel; and the first and second lens assemblies assembled in the housing. A second lens assembly is aligned with the upper and lower surfaces of the housing through the plurality of first and second holes.

Also, the first and second driving units may be solenoid coils, and the third and fourth driving units may be magnets.

Further, the length of the solenoid coil in the optical axis direction is longer than the length of the magnet in the optical axis direction, and the length of the solenoid coil in the direction perpendicular to the optical axis direction is the length of the magnet in the optical axis direction. may be longer than the length in the direction perpendicular to

Further, the magnet is magnetized with a first polarity on the surface facing the solenoid coil, and magnetized with a second polarity on the surface not facing the solenoid coil.

A camera module according to one aspect of the present invention for achieving the above object comprises a housing; a first lens assembly disposed in the housing; a second lens disposed on one side of the first lens assembly; assemblies; first and second drive sections disposed on the housing; a third drive section disposed on the first lens assembly and opposite the first drive section; and disposed on the second lens assembly. a fourth driving portion facing the second driving portion; and first and second guide portions disposed on the housing, wherein the first lens assembly has a first side surface facing the first guide portion. , a second side facing the second guide part, the second lens assembly including a first side facing the first guide part and a second side facing the second guide part; The length in the optical axis direction of the first side surface of the first lens assembly is longer than the length in the optical axis direction of the first side surface of the second lens assembly. The sum of the length of the side surface in the optical axis direction and the length of the first side surface of the second lens assembly in the optical axis direction is equal to the length of the second side surface of the first lens assembly in the optical axis direction and the length of the second side surface in the optical axis direction. It corresponds to the total length of the second side of the two-lens assembly in the direction of the optical axis.

According to this embodiment, it is possible to provide a camera module capable of improving the sensitivity to the movement of the lens assembly in the direction of the optical axis.

According to the present embodiment, it is possible to provide a lens assembly driving device and a camera module including the same, which can prevent friction torque generated when each lens group is moved through zooming in the camera module.

According to the present embodiment, the lens assembly can prevent the phenomenon that the center of the lens and the central axis of the image sensor do not match, such as lens decentering or lens tilt, when each lens group is moved through zooming in the camera module. A Lee driving device and a camera module including the same can be provided.

Also, according to the present embodiment, it is possible to provide an ultra-slim and ultra-compact lens assembly driving device and a camera module including the same.

In addition, the embodiment provides a lens assembly driving device and a camera module including the same that can secure a sufficient amount of light by eliminating the size limitation of the lens in the lens assembly of the optical system when implementing OIS. can be done.

In addition, the present embodiment provides a lens assembly driving device and a camera module including the same that can minimize the occurrence of decentration and tilt phenomena when implementing OIS and provide the best optical characteristics. be able to.

Also, according to the present embodiment, it is possible to provide a lens assembly driving device and a camera module including the same that can prevent magnetic field interference with AF or Zoom magnets when OIS is implemented.

Also, according to this embodiment, it is possible to provide a lens assembly driving device capable of implementing OIS with low power consumption and a camera module including the same.

1 is a perspective view of a camera module according to a first embodiment of the present invention; FIG. 1 is an exploded perspective view of a camera module according to a first embodiment of the present invention; FIG. It is a bottom view of a partial configuration of the camera module according to the first embodiment of the present invention. 1 is a front view of a partial configuration of a camera module according to a first embodiment of the present invention; FIG. 5 is a graph showing magnetic flux simulation of the camera module according to the first embodiment of the present invention; 4 is a graph showing measurement data of a sensor magnet of the camera module according to the first embodiment of the present invention; 4 is a graph showing output values according to the length of the sensor magnet of the camera module according to the first embodiment of the present invention; FIG. 5 is a perspective view of a camera module according to a second embodiment of the present invention; FIG. 6 is an exploded perspective view of a camera module according to a second embodiment of the present invention; FIG. 5 is a perspective view of a partial configuration of a camera module according to a second embodiment of the present invention; FIG. 5 is a perspective view of a partial configuration of a camera module according to a second embodiment of the present invention; FIG. 5 is a cross-sectional view of a partial configuration of a camera module according to a second embodiment of the present invention; 13 is an enlarged view of part A of FIG. 12; FIG. FIG. 13 is an enlarged view of a portion B of FIG. 12; FIG. 5 is a cross-sectional view of a partial configuration of a camera module according to a second embodiment of the present invention; FIG. 5 is a cross-sectional view of a partial configuration of a camera module according to a second embodiment of the present invention; FIG. 11 is a molding operation diagram of a partial configuration of the camera module according to the second embodiment of the present invention; FIG. 10 is an operation diagram of a partial configuration of the camera module according to the second embodiment of the present invention; FIG. 10 is an operation diagram of a partial configuration of the camera module according to the second embodiment of the present invention; FIG. 10 is a view showing alignment work of the camera module according to the second embodiment of the present invention; FIG.

Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

However, the technical spirit of the present invention is not limited to the described embodiments, and can be embodied in various different forms within the scope of the technical spirit of the present invention. One or more of the components can be selectively combined or replaced between embodiments.

Moreover, terms (including technical and scientific terms) used in the embodiments of the present invention are commonly understood by a person having ordinary skill in the art to which the present invention pertains, unless explicitly defined and described otherwise. Commonly used terms, such as pre-defined terms, should be construed as meanings that can be interpreted in the light of the contextual meaning of the relevant art.

Also, the terms used in the embodiments of the present invention are for the purpose of describing the embodiments and are not intended to limit the present invention.

In this specification, the singular can also include the plural unless otherwise specified in the text, and when described as "A and (and) at least one (or one or more) of B and C" A, B, C can contain one or more of all possible combinations of

Terms such as first, second, A, B, (a), and (b) can be used to describe the constituent elements of the embodiments of the present invention. Such terms are only intended to distinguish that element from other elements, and do not limit the nature, order, or sequence of the element in question.

It should be noted that when a component is described as being “coupled”, “coupled” or “connected” to another component, that component is directly “coupled”, “coupled” or “coupled” to that other component. ", or "connected", but also "coupled", "coupled", or "connected" by a further component between that component and that other component. be able to.

Also, when described as being formed or positioned “above (above)” or “below (below)” each component, “above (above)” or “below (below)” means It includes not only cases where two components are in direct contact with each other, but also cases where one or more further components are formed or arranged between two components. In addition, the terms 'above' and 'below' may include not only the upward direction but also the downward direction with respect to one component.

The "optical axis direction" used below is defined as the optical axis direction of each lens group coupled to the lens assembly drive. On the other hand, the “optical axis direction” can correspond to “vertical direction”, “z-axis direction”, and the like.

Hereinafter, the camera module according to the first embodiment of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a perspective view of a camera module according to a first embodiment of the invention. FIG. 2 is an exploded perspective view of the camera module according to the first embodiment of the present invention. FIG. 3 is a bottom view of a partial configuration of the camera module according to the first embodiment of the present invention. FIG. 4 is a front view of a partial configuration of the camera module according to the first embodiment of the present invention. FIG. 5 is a graph showing magnetic flux simulation of the camera module according to the first embodiment of the present invention. FIG. 6 is a graph showing measurement data of the sensor magnet of the camera module according to the first embodiment of the present invention. FIG. 7 is a graph showing output values according to the length of the sensor magnet of the camera module according to the first embodiment of the present invention. 1 to 4, the camera module 10 according to the first embodiment of the present invention includes a housing 100, a lens assembly 200, a guide part 300, a first driving part 400 and a second driving part 500. , a substrate 600, a sensor magnet 700, and a sensor 800, but may be implemented by excluding a part of them, and does not exclude additional configurations.

Camera module 10 may include housing 100 . Housing 100 may form the appearance of camera module 10 . The housing 100 may have a hexahedral shape with an exposed interior. The housing 100 may have a front surface and a rear surface open to the outside. At least a portion of the side surface of the housing 100 may be open to the outside. A lens assembly 200 , a guide part 300 , a first driving part 400 , a second driving part 500 , a substrate 600 , a sensor magnet 700 and a sensor 800 may be arranged in the housing 100 .

Camera module 10 may include lens assembly 200 . A lens assembly 200 can be placed in the housing 100 . The lens assembly 200 can move along the optical axis by electromagnetic interaction between the first driving unit 400 and the second driving unit 500 . Here, the optical axis direction means the optical axis direction of the lens arranged in the lens assembly 200 .

Lens assembly 200 can include a first lens assembly 210 . A first lens assembly 210 may be disposed inside the housing 100 . The first lens assembly 210 can be aligned with the second and third lens assemblies 220,230. The first lens assembly 210 can be arranged between the second lens assembly 220 and the third lens assembly 230 . The first lens assembly 210 can move in the optical axis direction by electromagnetic interaction between the 1-1 driver 420 and the 2-1 driver 520 . The movement of the first lens assembly 210 in the direction of the optical axis can be guided by the first guide part 320 .

The first lens assembly 210 may include a first lens barrel 212 on which the first lens group is arranged and a first side surface 214 arranged on one side of the first lens barrel 212 . The first lens barrel 212 of the first lens assembly 210 may be formed in a cylindrical shape. A first side surface 214 of the first lens assembly 210 may be formed in a square plate shape. A 1-1 driving unit 420 may be disposed on the first side surface 214 of the first lens assembly 210 . A first side surface 214 of the first lens assembly 210 may be formed with a first protrusion 216 protruding outward. The first protrusion 216 of the first side surface 214 of the first lens assembly 210 contacts the first groove of the first guide part 320 to guide movement in the optical axis direction. The length in the optical axis direction of the first side surface 214 of the first lens assembly 210 is greater than the sum of the length in the optical axis direction of the first lens barrel 212 and the length in the optical axis direction of the second lens barrel 222 . good.

Lens assembly 200 can include a second lens assembly 220 . A second lens assembly 220 may be disposed inside the housing. The second lens assembly 220 can be aligned with the first and third lens assemblies 210,230. The second lens assembly 220 may be arranged behind the first lens assembly 210 . The second lens assembly 220 can move in the optical axis direction by electromagnetic interaction between the 1-2 driver 410 and the 2-2 driver 510 . The movement of the second lens assembly 220 in the direction of the optical axis can be guided by the second guide part 310 .

The second lens assembly 220 can include a second lens barrel 222 on which the second lens group is arranged and a second side 224 arranged on the other side of the second lens barrel 222 . The second lens barrel 222 of the second lens assembly 220 may be formed in a cylindrical shape. A second side surface 224 of the second lens assembly 220 may be formed in a square plate shape. A 1-2 driver 310 may be disposed on the second side 224 of the second lens assembly 220 . A second side surface 224 of the second lens assembly 220 may be formed with a second protrusion that protrudes outward. The second protrusion of the second side surface 224 of the second lens assembly 220 contacts the second groove 312 of the second guide part 310 to guide movement in the optical axis direction. Since the first side surface 214 of the first lens assembly 210 and the second side surface 224 of the second lens assembly 220 are arranged in opposite directions, space efficiency can be improved. The optical axial length of the second side surface 224 of the second lens assembly 220 may be greater than the sum of the optical axial length of the first lens barrel 212 and the optical axial length of the second lens barrel 222 . .

Lens assembly 200 can include a third lens assembly 230 . A third lens assembly 230 may be disposed in the housing 100 . A third lens assembly 230 may be coupled to the housing 100 . A third lens assembly 230 may be coupled to the front of the housing. A third lens assembly 230 may be disposed in front of the first lens assembly 210 . The third lens assembly 230 can include a third lens group. The third lens group of the third lens assembly 230 may be optically aligned with the first and second lens groups. In the first embodiment of the present invention, the third lens assembly 230 is fixed to the housing 100, and the first and second lens assemblies 210 and 220 move in the optical axis direction to achieve a zooming function. can do.

The camera module 10 can include a guide part 300 . The guide part 300 may be arranged on the housing 100 . The guide part 300 may be integrally formed with the housing 100 . The guide part 300 may be manufactured separately and assembled to the housing 100 . As for the guide part 300 . It can guide the movement of the first and second lens assemblies 210 and 220 along the optical axis. A second driving unit 500 may be disposed in the guide unit 300 .

The guide part 300 may include a first guide part 320 . The first guide part 320 may be arranged on the housing 100 . The first guide part 320 may be fixed to the housing 100 . The first guide part 320 may be integrally formed with the housing 100 . The first guide part 320 may be disposed on one side of the first and second lens assemblies 210 and 220 . The first guide part 320 may include a first groove. The first groove of the first guide part 320 may contact the first protrusion 216 of the first side surface 214 of the first lens assembly 210 to guide the movement of the first lens assembly 210 along the optical axis. . A 2-1 driving unit 520 may be disposed in the first guide unit 320 . The guide part 300 may include a second guide part 310 . The second guide part 310 may be arranged on the housing 100 . The second guide part 310 may be fixed to the housing 100 . The second guide part 310 may be integrally formed with the housing 100 . The second guide part 310 may be arranged on the other of the first and second lens assemblies 210 and 220 . The second guide part 310 may include a second groove 312 . The second groove 312 of the second guide part 310 may contact the second protrusion of the second side surface 224 of the second lens assembly 220 to guide the movement of the second lens assembly 220 along the optical axis. . A 2-2 driving unit 510 may be disposed in the second guide unit 310 .

The camera module 10 can include a first driver 400 . The first driving part 400 may be arranged in the lens assembly 200 . The first driving part 400 may be arranged in the first and second lens assemblies 210 and 220 . The first driving part 400 may include a magnet. The first driving part 400 may face the second driving part 500 . The first driving unit 400 can move the first lens assembly 210 and the second lens assembly 220 in the optical axis direction through electromagnetic interaction with the second driving unit 500 .

The first driver 400 may include a 1-1 driver 420 . The 1-1 driver 420 may be disposed in the first lens assembly 210 . The 1-1 driver 420 may be disposed on the first side 214 of the first lens assembly 210 . The 1-1 driving unit 420 is magnetized with a first polarity at the front and with a second polarity at the rear. The 1-1 driving part 420 may be formed in a hexahedral shape. The 1-1 driving unit 420 may be arranged to face the 2-1 driving unit 520 . The 1-1 driving unit 420 can move the first lens assembly 210 in the optical axis direction through electromagnetic interaction with the 2-1 driving unit 520 .

The first driver 400 may include a 1-2 driver 410 . The 1-2 driver 410 may be disposed in the second lens assembly 220 . The 1-2 driver 410 may be disposed on the second side 224 of the second lens assembly 220 . The 1-2 driving unit 410 is magnetized with a first polarity at the front and with a second polarity at the rear. The 1-2 driving part 410 may be formed in a hexahedral shape. The 1-2 driving unit 410 may be arranged to face the 2-2 driving unit 510 . The 1-2 driving unit 410 can move the second lens assembly 220 in the optical axis direction through electromagnetic interaction with the 2-2 driving unit 510 .

The camera module 10 may include first yokes 430,440. The first yokes 430 and 440 can be arranged between the first driving part 400 and the first and second lens assemblies 210 and 220 . The first yokes 430 and 440 may prevent the magnetic field of the first driving unit 400 from leaking.

The first yokes 430 , 440 can include a 1-1 yoke 440 . The 1-1 yoke 440 may be arranged between the first lens assembly 210 and the 1-1 driving part 420 . A 1-1 yoke 440 may be disposed in the first lens assembly 210 . The 1-1 yoke 440 may be coupled to the first side surface 214 of the first lens assembly 210 . The 1-1 yoke 440 may be snap-fit coupled to the first side surface 214 of the first lens assembly 210 . The 1-1 yoke 440 may wrap at least two surfaces of the 1-1 driving part 420 . Accordingly, the 1-1 yoke 440 can prevent the magnetic field of the 1-1 driving section 420 from leaking.

The first yokes 430 , 440 may include the 1-2 yokes 430 . The 1-2 yoke 430 may be disposed between the second lens assembly 220 and the 1-2 driver 410 . The 1-2 yoke 430 may be arranged in the second lens assembly 220 . The 1-2 yoke 430 may be coupled to the second side surface 224 of the second lens assembly 220 . The 1-2 yoke 430 may be snap-fit coupled to the second side 224 of the second lens assembly 220 . The 1-2 yoke 430 may wrap at least two sides of the 1-2 driving part 410 . Accordingly, the 1-2 yoke 430 can prevent the magnetic field of the 1-2 driving unit 410 from leaking.

The camera module 10 can include a second driver 500 . The second driving part 500 may be arranged in the housing 100 . The second driving part 500 may be arranged on the guide part 300 . The second driver 500 may include a coil. The second driving part 500 may be coupled to the substrate 600 . The second driver 500 may receive current from the substrate 600 . The second driving part 500 may face the first driving part 400 . The second driving unit 500 can move the first lens assembly 210 and the second lens assembly 220 in the optical axis direction through electromagnetic interaction with the first driving unit 400 .

The second driver 500 may include a 2-1 driver 520 . The 2-1 driving part 520 may be disposed on the first guide part 320 . The 2-1 driving part 520 may be coupled to the first guide part 320 . The 2-1 driver 520 may be coupled to the substrate 600 . The 2-1 driving unit 520 may be electrically connected to the substrate 600 . The 2-1 driving part 520 may be formed in the shape of a 'square'. The 2-1 driver 520 may include a coil. The 2-1 driving unit 520 may face the 1-1 driving unit 420 . When current is supplied to the 2-1 driving unit 520 , the 2-1 driving unit 520 may electromagnetically interact with the 1-1 driving unit 420 .

The second driver 500 may include a 2-2 driver 510 . The 2-2 driving part 510 may be disposed on the second guide part 310 . The 2-2 driving part 510 may be coupled to the second guide part 310 . The 2-2 driver 510 may be coupled to the substrate 600 . The 2-2 driver 510 may be electrically connected to the substrate 600 . The 2-2 driving unit 510 may be formed in the shape of a square. The 2-2 driver 510 may include a coil. The 2-2 driving unit 510 may face the 1-2 driving unit 410 . When current is supplied to the 2-2 driving unit 510 , the 2-2 driving unit 510 can electromagnetically interact with the 1-2 driving unit 410 .

The camera module 10 can include second yokes 530,540. The second yokes 530 and 540 may be arranged outside the second driving part 500 . The second yokes 530 , 540 can be coupled to the substrate 600 . The second yokes 530 and 540 can be snap-fit coupled to the substrate 600 . The second yokes 530 and 540 may prevent leakage of the electric field of the second driving unit 500 .

The second yokes 530 , 540 can include a 2-1 yoke 540 . The 2-1 yoke 540 can be coupled to the substrate 600 . The 2-1 yoke 540 may wrap the outer side of the 2-1 driving part 520 . Accordingly, the 2-1 yoke 540 can prevent leakage of the electric field of the 2-1 driving unit 520 .

The second yokes 530 , 540 can include a 2-2 yoke 530 . The 2-2 yoke 530 may be coupled to the substrate 600 . The 2-2 yoke 530 may wrap the outer side of the 2-2 driving part 510 . Accordingly, the 2-2 yoke 530 can prevent leakage of the electric field of the 2-2 driving unit 510 .

Camera module 10 may include substrate 600 . A substrate 600 can be placed in the housing 100 . The substrate 600 may be coupled with the second driving part 500 and the second yokes 530 and 540 . A sensor 800 can be disposed on the substrate 600 . The substrate 600 may be electrically connected to the second driving unit 500 and the sensor 800 to supply current. Substrate 600 may include a printed circuit board (PCB). Substrate 600 may include a flexible printed circuit board (FPCB).

Camera module 10 may include sensor magnet 700 . A sensor magnet 700 can be disposed on the lens assembly 200 . A sensor magnet 700 can be disposed on the first and second lens assemblies 210 and 220 . The sensor magnet 700 may be extended in the optical axis direction. The sensor magnet 700 overlaps the first and second lens assemblies 210 and 220 in a first direction perpendicular to the optical axis direction and in a second direction perpendicular to the optical axis direction and the first direction. be. The distance between the sensor magnet 700 and the center of the lens assembly 200 may be shorter than the distance between the center of the first driving part 400 and the lens assembly 200 . Here, the center of the lens assembly 200 means the central region of the first lens barrel 212 and/or the central region of the second lens barrel 222 .

A sensor magnet 700 may face the Hall sensor 800 . The length of the sensor magnet 700 in the optical axis direction may be greater than the first and second lens assemblies 210 and 220 and the optical axis direction movement stroke. The length of the sensor magnet 700 in the optical axis direction corresponds to the sum of the distance between the first sensor 812, 822 and the second sensor 814, 824 and the optical axis movement stroke of the first and second lens assemblies 210, 220. can do. Specifically, the length of the sensor magnet 700 in the optical axis direction is determined by the distance between the first sensors 812 and 822 and the second sensors 814 and 824 and the stroke of the first and second lens assemblies 210 and 220 in the optical axis direction. can have a length within 5% of the sum of Accordingly, the sensitivity of the sensor magnet 700 can be improved. In the first embodiment of the present invention, the movement stroke of the first and second lens assemblies 210 and 220 means the movement distance of the first and second lens assemblies 210 and 220 in the optical axis direction.

Sensor magnet 700 may include a first sensor magnet 720 . A first sensor magnet 720 may be disposed on the first lens assembly 210 . The first sensor magnet 720 may be separated from the second sensor magnet 710 in a first direction perpendicular to the optical axis direction. The first sensor magnet 720 may have a length corresponding to that of the second sensor magnet 710 . A first sensor magnet 720 may be disposed in a space between the first lens barrel 212 and the first side surface 214 . Thereby, space efficiency can be improved. The distance between the first sensor magnet 720 and the central area of the first lens barrel 212 may be shorter than the distance between the 1-1 driving unit 420 and the central area of the first lens barrel 212 . A first sensor magnet 720 may face a plurality of sensors 820 . Specifically, the first sensor magnet 720 may face the 1-1 sensor 822 and the 2-1 sensor 824 .

Sensor magnet 700 may include a second sensor magnet 710 . A second sensor magnet 710 may be disposed on the second lens assembly 220 . The second sensor magnet 710 may be separated from the first sensor magnet 720 in a first direction perpendicular to the optical axis direction. The second sensor magnet 710 may have a length corresponding to that of the first sensor magnet 720 . A second sensor magnet 710 may be positioned between the second lens barrel 222 and the second side surface 224 . Thereby, space efficiency can be improved. The distance between the second sensor magnet 710 and the central area of the second lens barrel 222 may be shorter than the distance between the 1-2 driving part 410 and the central area of the second lens barrel 222 . A second sensor magnet 710 may face a plurality of sensors 810 . Specifically, the second sensor magnet 710 may face the 1-2 sensor 812 and the 2-2 sensor 814 .

The camera module 10 can include third yokes 730,740. A third yoke 730 , 740 may be disposed between the sensor magnet 700 and the first and second lens assemblies 210 , 220 . The third yokes 730 and 740 may be extended in the optical axis direction. A cross section of the third yokes 730 and 740 may be formed in a '⊂' shape. The third yokes 730 and 740 can wrap three sides of the sensor magnet 700 . Specifically, the third yokes 730 and 740 may wrap the surface of the sensor magnet 700 excluding the surface facing the sensor 800 . Accordingly, it is possible to prevent leakage of the magnetic field of the sensor magnet 700 and prevent the sensor magnet 700 from interfering with the electromagnetic interaction between the first and second driving units 400 and 500 .

The third yokes 730 , 740 can include a 3-1 yoke 740 . A 3-1 yoke 740 may be disposed between the first lens assembly 210 and the first sensor magnet 720 . A 3-1 yoke 740 may be disposed in the space between the first lens barrel 212 and the first side surface 214 . The 3-1 yoke 740 may wrap three sides of the first sensor magnet 720 . Accordingly, the leakage magnetic field of the first sensor magnet 720 can be reduced, and interference with the first and second driving units 400 and 500 can be prevented.

The third yokes 730 , 740 can include a 3-2 yoke 730 . A 3-2 yoke 730 may be disposed between the second lens assembly 220 and the second sensor magnet 710 . A 3-2 yoke 730 may be disposed in the space between the second lens barrel 222 and the second side surface 224 . The 3-2 yoke 730 may wrap three sides of the second sensor magnet 710 . Accordingly, the leakage magnetic field of the second sensor magnet 710 can be reduced, and interference with the first and second driving units 400 and 500 can be prevented.

Camera module 10 may include sensor 800 . A sensor 800 can be disposed on the housing 100 . A sensor 800 can be disposed on the substrate 600 . Sensor 800 may be electrically connected to substrate 600 . The sensor 800 can face the sensor magnet 700 . The sensor 800 may include a Hall Sensor that senses the sensor magnet 700 . The sensor 800 can include multiple sensors 810,820.

The sensor 800 can include first sensors 822,812. The first sensors 822, 812 can be separated from the second sensors 824, 814 in the optical axis direction. The first sensors 822, 812 are It can include a 1-1 sensor 822 and a 1-2 sensor 812 spaced apart from the 1-1 sensor 822 in a direction perpendicular to the optical axis.

The sensor 800 can include second sensors 824,814. The second sensors 824, 814 can be separated from the first sensors 822, 812 in the optical axis direction. The second sensors 824, 814 can include a 2-1 sensor 824 and a 2-2 sensor 814 spaced apart from the 2-1 sensor 824 in a direction perpendicular to the optical axis.

The 1-1 sensor 822 and the 2-1 sensor 824 can face the first sensor magnet 720 . The 1-1 sensor 822 and the 2-1 sensor 824 can sense the first sensor magnet 720 .

The 1-2 sensor 812 and the 2-2 sensor 814 can face the second sensor magnet 710 . A 1-2 sensor 812 and a 2-2 sensor 814 can sense the second sensor magnet 710 .

The distance between the first sensor 822, 812 and the second sensor 824, 814 and the total travel stroke of the first and second lens assemblies 210, 220 correspond to the length of the sensor magnet 700 and the optical axis direction. be able to. The distance between the first sensor 822,812 and the second sensor 824,814 may be greater than the travel stroke of the first and second lens assemblies 210,220.

Referring to FIG. 5, where A is the output value of the first sensors 822 and 812 and B is the output value of the second sensors 824 and 814, (AB)/(A+B) is linearly calculated. I understand. This facilitates amplification of the output value.

Referring to FIG. 6, it can be seen that the first sensor 822, 812 and second sensor 824, 814 measurements for the sensor magnet 700 occur between 0.5 mm and 8.5 mm. That is, when the length of the sensor magnet 700 in the optical axis direction deviates from about 7.5 mm, the measured values of the first sensors 822 and 812 and the second sensors 824 and 814 are meaningless due to the sudden decrease in magnetic force. Therefore, when the length of the sensor magnet 700 in the optical axis direction is approximately 7.5 mm, the measurement efficiency of the first sensors 822, 812 and the second sensors 824, 814 can be increased.

Referring to FIG. 7, when the length of the sensor magnet 700 in the optical axis direction is about 7.5 mm and the stroke of the sensor magnet 700 is about 3 mm, the first sensors 822 and 812 and the second sensors 824 and 814 It can be seen that the maximum efficiency is maintained when the distance between them is about 4.5 mm. Therefore, the length of the sensor magnet 700 in the optical axis direction is the sum of the distance between the first sensors 812, 822 and the second sensors 814, 824 and the optical axis movement strokes of the first and second lens assemblies 210, 220. It is preferred to have a length within 5% of . Accordingly, the sensitivity of the sensor magnet 700 can be improved.

Hereinafter, a second embodiment of the present invention will be described in more detail with reference to the attached drawings.

FIG. 8 is a perspective view of a camera module according to a second embodiment of the invention. FIG. 9 is an exploded perspective view of a camera module according to a second embodiment of the invention. 10 and 11 are perspective views of a partial configuration of a camera module according to a second embodiment of the present invention. FIG. 12 is a cross-sectional view of a partial configuration of a camera module according to the second embodiment of the present invention. 13 is an enlarged view of part A of FIG. 12. FIG. FIG. 14 is an enlarged view of part B of FIG. 12 . 15 and 16 are sectional views of a partial configuration of a camera module according to a second embodiment of the present invention. FIG. 17 is a molding operation diagram of a partial configuration of the camera module according to the second embodiment of the present invention. 18 and 19 are operation diagrams of a partial configuration of the camera module according to the second embodiment of the present invention. FIG. 20 is a diagram illustrating alignment work of the camera module according to the second embodiment of the present invention.

8 to 20, the camera module 1010 according to the second embodiment of the present invention includes a housing 1100, a first lens assembly 1200, a second lens assembly 1300 and a third lens assembly 1400. , a first driving portion 1510, a second driving portion 1520, a third driving portion 1610, a fourth driving portion 1620, and a guide portion 1700, except for some of the configurations. without otherwise excluding additional configurations.

A camera module 1010 according to the second embodiment of the present invention may include a lens assembly driving device. The lens assembly driving device includes a housing 1100, a first lens assembly 1200, a second lens assembly 1300, a third lens assembly 1400, a first driving section 1510, a second driving section 1520, and a third lens assembly. Although the third driving unit 1610, the fourth driving unit 1620, and the guide unit 1700 may be included, some of the components may be excluded, or additional components may be excluded. do not have.

Camera module 1010 may include housing 1100 . Housing 1100 may form the appearance of camera module 1010 . The housing 1100 may have a hexahedral shape with an exposed interior. The housing 1100 includes a first lens assembly 1200, a second lens assembly 1300, a third lens assembly 1400, a first driving section 1510, a second driving section 1520, a third driving section 1610, A fourth driving part 1620 and a guide part 1700 may be arranged. A substrate (not shown) that is electrically connected to at least one of the first to fourth driving units 1500 and 1600 to supply current may be disposed in the housing 1100 .

At least one side of the housing 1100 may be open. Even after at least one surface of the housing 1100 is opened and the first lens assembly 1200, the second lens assembly 1300, and the third lens assembly 1400 are assembled in the housing 1100, the first lens assembly 1200 can be visually observed. , at least one operation in the second lens assembly 1300 can be confirmed. For example, the housing 1100 may have upper and lower openings to expose the first lens assembly 1200 and the second lens assembly 1300 to the outside.

Camera module 1010 can include a first lens assembly 1200 . A first lens assembly 1200 can be disposed in the housing 1100 . The first lens assembly 1200 can be arranged between the second lens assembly 1300 and the third lens assembly 1400 . The first lens assembly 1200 can include a first lens barrel 1210 , a first lens group 1220 , a first side 1230 and a second side 1240 .

First lens assembly 1200 can include a first lens barrel 1210 . The first lens barrel 1210 may be formed in a cylindrical shape. The first lens barrel 1210 may include a housing formed therein. A first lens group 1220 may be disposed in the first lens barrel 1210 . A first side surface 1230 and a second side surface 1240 may be extended from the first lens barrel 1210 .

First lens barrel 1210 can include a first hole 1212 . The first hole 1212 may include at least one hole. With the first lens assembly 1200 assembled inside the housing 1100, the first lens assembly 1200 is aligned with the upper and lower surfaces of the housing 1100 via the alignment mechanism 11000 through the first hole 1212. .

the first lens assembly 1200; A first lens group 1220 may be included. A first lens group 1220 can be disposed in a first lens barrel 1210 . The first lens group 1220 may be disposed in a housing formed inside the first lens barrel 1210 . The first lens group 1220 is axially aligned with the second lens group 1320 and the third lens group 1420 . The first lens group 1220 can include at least one lens.

First lens assembly 1200 can include a first side surface 1230 . A first side 1230 of the first lens assembly 1200 may be connected to the first lens barrel 1210 . A first side surface 1230 of the first lens assembly 1200 may be formed in a square plate shape. A first side 1230 of the first lens assembly 1200 may be disposed on one side of the first lens barrel 1210 .

A first side surface 1230 of the first lens assembly 1200 may face the first guide parts 1730 and 1740 . The first side surface 1230 of the first lens assembly 1200 can be guided in movement along the optical axis by the first guide parts 1730 and 1740 .

A first side surface 1230 of the first lens assembly 1200 overlaps a first side surface 1330 of the second lens assembly 1300 in the optical axis direction. The length of the first side 1230 of the first lens assembly 1200 in the optical axis direction may be longer than the length of the first side 1330 of the second lens assembly 1300 in the optical axis direction.

A third driver 1610 may be disposed on the first side 1230 of the first lens assembly 1200 . A first side surface 1230 of the first lens assembly 1200 may include a groove 1236 in which the third driver 1610 is arranged. A first side surface 1230 of the first lens assembly 1200 may face the first driver 1510 .

The first side 1230 of the first lens assembly 1200 can include third grooves 1232,1234. The third grooves 1232 and 1234 may face the first guide parts 1730 and 1740 . The third grooves 1232 and 1234 may face the first grooves 1732 and 1742 of the first guide parts 1730 and 1740 . The third grooves 1232 and 1234 may be formed in a 'V' shape. The third grooves 1232, 1234 may contact the first guide balls 1810, 1820. FIG. The third grooves 1232 and 1234 may contact the first guide balls 1810 and 1820 at two points.

The third grooves 1232 , 1234 can include a 3-1 groove 1232 and a 3-2 groove 1234 . The 3-1 groove 1232 and the 3-2 groove 1234 can be separated in a direction perpendicular to the optical axis direction. The 3-1 groove 1232 and the 3-2 groove 1234 may have shapes and sizes corresponding to each other. The 3-1 groove 1232 can face the 1-1 groove 1732 . The 3rd-2 groove 1234 can oppose the 1-2nd groove 1742 . A third driving part 1610 may be disposed in the space between the 3-1 groove 1232 and the 3-2 groove 1234 . The 3-1 grooves 1232 can include a plurality of 3-1 grooves 1232 spaced apart along the optical axis. The 3-2 grooves 1234 can include a plurality of 3-2 grooves 1234 spaced apart along the optical axis. The 3-1 groove 1232 and the 3-2 groove 1234 may each be formed in a 'V' shape. The 3-1 groove 1232 can contact the 1-1 guide ball 1810 . The 3-1 groove 1232 may contact the 1-1 guide ball 1810 at two points. The 3-2 groove 1234 can contact the 1-2 guide ball 1820 . The 3-2 groove 1234 can contact the 1-2 guide ball 1820 at two points.

First lens assembly 1200 can include a second side 1240 . A second side 1240 of the first lens assembly 1200 may be connected to the first lens barrel 1210 . A second side surface 1240 of the first lens assembly 1200 may be formed in a square plate shape. A second side 1240 of the first lens assembly 1200 can be positioned on the other side of the first lens barrel 1210 . That is, the second side surface 1240 of the first lens assembly 1200 may be arranged opposite to the first side surface 1230 of the first lens assembly 1200 with respect to the first lens barrel 1210 .

A second side surface 1240 of the first lens assembly 1200 may face the second guide parts 1710 and 1720 . The second side surface 1240 of the first lens assembly 1200 can be guided in movement along the optical axis by the second guide parts 1710 and 1720 .

The second side 1240 of the first lens assembly 1200 may overlap the second side 1340 of the second lens assembly 1300 in the optical axis direction. The length of the second side 1240 of the first lens assembly 1200 in the optical axis direction may be shorter than the length of the second side 1330 of the second lens assembly 1300 in the optical axis direction.

A second side 1240 of the first lens assembly 1200 may face the second driver 1520 .

The second side 1240 of the first lens assembly 1200 can include fourth grooves 1242,1244. The fourth grooves 1242 and 1244 may face the second guide parts 1710 and 1720 . The fourth grooves 1242 and 1244 may face the second grooves 1712 and 1722 of the second guide parts 1710 and 1720, respectively. The fourth grooves 1242 and 1244 may be formed in a 'V' shape. The fourth grooves 1242 and 1244 may contact the second guide balls 1830 and 1840. The fourth grooves 1242 and 1244 may contact the second guide balls 1830 and 1840 at two points.

The fourth grooves 1242 , 1244 can include a 4-1 groove 1242 and a 4-2 groove 1244 . The 4-1 groove 1242 and the 4-2 groove 1244 can be separated in a direction perpendicular to the optical axis direction. The 4-1 groove 1242 and the 4-2 groove 1244 may have shapes and sizes corresponding to each other. The 4-1 groove 1242 can face the 2-1 groove 1712 . The 4-2 groove 1244 can face the 2-2 groove 1722 . The 4-1 groove 1242 and the 4-2 groove 1244 may each be formed in a 'V' shape. The 4-1 groove 1242 may contact the 2-1 guide ball 1830 . The 4-1 groove 1242 may contact the 2-1 guide ball 1830 at two points. The 4-2 groove 1244 can contact the 2-2 guide ball 1840 . The 4-2 groove 1244 may contact the 2-2 guide ball 1840 at two points.

The sum of the length in the optical axis direction of the first side surface 1230 of the first lens assembly 1200 and the length in the optical axis direction of the first side surface 1330 of the second lens assembly 1300 is the length of the second lens assembly 1200 . It may correspond to the total length of the side surface 1240 in the optical axis direction and the length of the second side surface 1340 of the second lens assembly 1300 in the optical axis direction.

Camera module 1010 can include a second lens assembly 1300 . A second lens assembly 1300 can be disposed in the housing 1100 . The second lens assembly 1300 may be arranged on one side of the first lens assembly 1200 . The second lens assembly 1300 can include a second lens barrel 1310 , a second lens group 1320 , a first side 1330 and a second side 1340 .

Second lens assembly 1300 can include a second lens barrel 1310 . The second lens barrel 1310 may be formed in a cylindrical shape. The second lens barrel 1310 may include a receptacle formed therein. A second lens group 1320 may be disposed in the second lens barrel 1310 . A first side 1330 and a second side 1340 may be extended from the second lens barrel 1310 .

A second lens barrel 1310 may include a second hole 1312 . The second hole 1312 may include at least one hole. With the second lens assembly 1300 assembled inside the housing 1100, the second lens assembly 1300 is aligned with the upper and lower surfaces of the housing 1100 through the second hole 1312 and the alignment mechanism 11000. .

Second lens assembly 1300 can include a second lens group 1320 . A second lens group 1320 can be disposed in a second lens barrel 1310 . The second lens group 1320 may be arranged in a housing formed inside the second lens barrel 1310 . The second lens group 1320 is aligned along the optical axis with the first lens group 1220 and the third lens group 1420 . The second lens group 1320 can include at least one lens.

Second lens assembly 1300 can include a first side surface 1330 . A first side 1330 of the second lens assembly 1300 may be connected to the second lens barrel 1310 . A first side surface 1330 of the second lens assembly 1300 may be formed in a square plate shape. A first side 1330 of the second lens assembly 1300 may be disposed on one side of the second lens barrel 1310 .

A first side surface 1330 of the second lens assembly 1300 may face the first guide parts 1730 and 1740 . The first side surface 1330 of the second lens assembly 1300 can be guided in movement along the optical axis by the first guide parts 1730 and 1740 .

The first side 1330 of the second lens assembly 1300 overlaps the first side 1230 of the first lens assembly 1200 in the optical axis direction. The length of the first side 1330 of the second lens assembly 1300 in the optical axis direction may be shorter than the length of the first side 1230 of the first lens assembly 1200 in the optical axis direction.

A first side 1330 of the second lens assembly 1300 may face the first driver 1510 .

The first side 1330 of the second lens assembly 1300 can include fifth grooves 1332,1334. The fifth grooves 1332 and 1334 may face the first guide parts 1730 and 1740 . The fifth grooves 1332 and 1334 may face the first grooves 1732 and 1742 of the first guide parts 1730 and 1740 . The fifth grooves 1332 and 1334 may be formed in a 'V' shape. The fifth grooves 1332 , 1334 may contact the third guide balls 1850 , 1860 . The fifth grooves 1332 and 1334 may contact the third guide balls 1850 and 1860 at two points.

The fifth grooves 1332 , 1334 can include a 5-1 groove 1332 and a 5-2 groove 1334 . The 5-1 groove 1332 and the 5-2 groove 1334 can be spaced apart in a direction perpendicular to the optical axis direction. The 5-1 groove 1332 and the 5-2 groove 1334 may have shapes and sizes corresponding to each other. The 5-1 groove 1332 can face the 1-1 groove 1732 . The 5-2 groove 1334 can oppose the 1-2 groove 1742 . The 5-1 groove 1332 and the 5-2 groove 1334 may each be formed in a 'V' shape. The 5-1 groove 1332 can contact the 3-1 guide ball 1850 . The 5-1 groove 1332 may contact the 3-1 guide ball 1850 at two points. The 5-2 groove 1334 can contact the 3-2 guide ball 1860 . The 5-2 groove 1334 can contact the 3-2 guide ball 1860 at two points.

The second lens assembly 1300 can include a second side 1340 . A second side 1340 of the second lens assembly 1300 may be connected to the second lens barrel 1310 . A second side surface 1340 of the second lens assembly 1300 may be formed in a square plate shape. A second side 1340 of the second lens assembly 1300 can be positioned on the other side of the second lens barrel 1310 . That is, the second side surface 1340 of the second lens assembly 1300 may be arranged opposite to the first side surface 1330 of the second lens assembly 1300 with respect to the second lens barrel 1310 .

A second side surface 1340 of the second lens assembly 1300 may face the second guide parts 1710 and 1720 . The second side surface 1340 of the second lens assembly 1300 can be guided in movement along the optical axis by the second guide parts 1710 and 1720 .

The second side 1340 of the second lens assembly 1300 may overlap the second side 1240 of the first lens assembly 1200 in the optical axis direction. The length of the second side 1340 of the second lens assembly 1300 in the optical axis direction may be longer than the length of the second side 1240 of the first lens assembly 1200 in the optical axis direction.

A fourth driver 1620 may be disposed on the second side 1340 of the second lens assembly 1300 . A second side surface 1340 of the second lens assembly 1300 may be formed with a groove 1346 in which the fourth driving part 1620 is arranged. A second side 1340 of the second lens assembly 1300 may face the second driver 1520 .

A second side 1340 of the second lens assembly 1300 may include sixth grooves 1342,1344. The sixth grooves 1342 and 1344 may face the second guide parts 1710 and 1720 . The sixth grooves 1342 and 1344 may face the second grooves 1712 and 1722 of the second guide parts 1710 and 1720, respectively. The sixth grooves 1342 and 1344 may be formed in a 'V' shape. The sixth grooves 1342, 1344 may contact the fourth guide balls 1870, 1880. The sixth grooves 1342 and 1344 may contact the fourth guide balls 1870 and 1880 at two points.

The sixth grooves 1342 , 1344 can include a 6-1 groove 1342 and a 6-2 groove 1344 . The 6-1 groove 1342 and the 6-2 groove 1344 can be spaced apart in a direction perpendicular to the optical axis direction. The 6-1 groove 1342 and the 6-2 groove 1344 may have shapes and sizes corresponding to each other. The 6-1 groove 1342 can face the 2-1 groove 1712 . The 6-2 groove 1344 can face the 2-2 groove 1722 . A fourth driving part 1620 may be disposed in the space between the 6-1 groove 1342 and the 6-2 groove 1344 . The 6-1 grooves 1342 can include a plurality of 6-1 grooves 1342 spaced apart along the optical axis. The 6-2 grooves 1344 can include a plurality of 6-2 grooves 1344 spaced apart along the optical axis. The 6-1 groove 1342 and the 6-2 groove 1344 may each be formed in a 'V' shape. The 6-1 groove 1342 can contact the 4-1 guide ball 1870 . The 6-1 groove 1342 can contact the 4-1 guide ball 1870 at two points. The 6-2 groove 1344 can contact the 4-2 guide ball 1880 . The 6-2 groove 1344 can contact the 4-2 guide ball 1880 at two points.

Camera module 1010 can include a third lens assembly 1400 . A third lens assembly 1400 can be disposed in the housing 1100 . A third lens assembly 1400 may be fixed to the housing 1100 . A third lens assembly 1400 may be fixed to the front portion of the housing 1100 . The third lens assembly 1400 can be arranged on the other side of the first lens group 1220 . After the third lens assembly 1400 is first assembled on the side of the housing 1100, the first lens assembly 1200 and the second lens assembly 1300 are arranged inside the housing 1100 and assembled.

Third lens assembly 1400 can include a third lens group 1420 . The third lens group 1420 of the third lens assembly 1400 can include at least one lens. The third lens group 1420 of the third lens assembly 1400 is aligned with the first lens group 1220 and the second lens group 1320 in the optical axis direction.

Camera module 1010 may include a first driver 1510 . The first driving part 1510 may be arranged in the housing 1100 . The first driving part 1510 may be arranged on the side of the housing 1100 . The first driving part 1510 can be arranged in the groove 1102 of the housing 1100 . The first driving part 1510 may face the third driving part 1610 . The length of the first driver 1510 in the optical axis direction may be longer than the length of the third driver 1610 in the optical axis direction. The length of the first driver 1510 in the direction perpendicular to the optical axis direction may be longer than the length of the third driver 1610 in the direction perpendicular to the optical axis direction. The first driver 1510 may be a solenoid coil. Alternatively, when the third driving part 1610 is a coil, the first driving part 1510 may be a magnet. The first driver 1510 can move the first lens assembly 1200 along the optical axis through electromagnetic interaction with the third driver 1610 .

Camera module 1010 may include a second driver 1520 . The second driving part 1520 may be arranged in the housing 1100 . The second driving part 1520 may be arranged on the side of the housing 1100 . The second driving part 1520 can be arranged in the groove 1102 of the housing 1100 . The second driving part 1520 may face the fourth driving part 1620 . The length of the second driver 1520 in the optical axis direction may be longer than the length of the fourth driver 1620 in the optical axis direction. The length of the second driver 1520 in the direction perpendicular to the optical axis direction may be longer than the length of the fourth driver 1620 in the direction perpendicular to the optical axis direction. The second driving part 1520 may be a solenoid coil. Alternatively, when the fourth driving part 1620 is a coil, the second driving part 1520 may be a magnet. The second driver 1520 can move the second lens assembly 1300 in the optical axis direction through electromagnetic interaction with the fourth driver 1620 .

Camera module 1010 may include a third driver 1610 . The third driver 1610 may be arranged in the first lens assembly 1200 . The third driving part 1610 may be arranged on the first side 1230 of the first lens assembly 1200 . The third driving part 1610 may be arranged in the groove 1236 of the first side surface 1230 of the first lens assembly 1200 . The third driving part 1610 may be disposed between the 3-1 groove 1232 and the 3-2 groove 1234 of the first side surface 1230 of the first lens assembly 1200 . The third driving part 1610 may face the first driving part 1510 . The third driving part 1610 may be a magnet. Alternatively, when the first driving part 1510 is a magnet, the third driving part 1610 may be a coil. The length of the third driver 1610 in the optical axis direction may be shorter than the length of the first driver 1510 in the optical axis direction. The length of the third driver 1610 in the direction perpendicular to the optical axis direction may be shorter than the length of the first driver 1510 in the direction perpendicular to the optical axis direction. A surface of the third driving part 1610 facing the first driving part 1510 is magnetized with a first polarity, and a surface not facing the first driving part 1510 is magnetized with a second polarity. On the other hand, the surface of the third driving part 1610 facing the first driving part 1510 is magnetized with first and second polarities. The third driver 1610 can move the first lens assembly 1200 along the optical axis through electromagnetic interaction with the first driver 1510 .

Camera module 1010 may include a fourth driver 1620 . The fourth driving part 1620 may be arranged in the second lens assembly 1300 . The fourth driving part 1620 may be arranged on the second side 1340 of the second lens assembly 1300 . The fourth driving part 1620 may be arranged in the groove 1346 of the second side surface 1340 of the second lens assembly 1300 . The fourth driving part 1620 may be disposed between the 6-1 groove 1342 and the 6-2 groove 1344 of the second side surface 1340 of the second lens assembly 1300 . The fourth driving part 1620 may face the second driving part 1520 . The fourth driving part 1620 may be a magnet. Alternatively, when the second driving part 1520 is a magnet, the fourth driving part 1620 may be a coil. The length of the fourth driver 1620 in the optical axis direction may be shorter than the length of the second driver 1520 in the optical axis direction. The length of the fourth driver 1620 in the direction perpendicular to the optical axis direction may be shorter than the length of the second driver 1520 in the direction perpendicular to the optical axis direction. A surface of the fourth driver 1620 facing the second driver 1520 is magnetized with a first polarity, and a surface not facing the second driver 1520 is magnetized with a second polarity. On the other hand, the surface of the fourth driver 1620 facing the second driver 1520 is magnetized with first and second polarities. The fourth driver 1620 can move the second lens assembly 1300 in the optical axis direction through electromagnetic interaction with the second driver 1520 .

That is, in the second embodiment of the present invention, the first lens assembly 1200 is moved in the optical axis direction through the electromagnetic interaction between the first driving part 1510 and the third driving part 1610, and the second driving part 1520 and the The electromagnetic interaction of the fourth driver 1620 moves the second lens assembly 1300 in the optical axis direction, thereby realizing a zooming function.

Camera module 1010 may include a guide portion 1700 . The guide part 1700 may be arranged in the housing 1100 . The guide part 1700 may be integrally formed with the housing 1100 . The guide part 1700 may be integrally formed with the inside of the housing 1100 . Referring to FIG. 17, the guide part 1700 and the inner surface of the housing 1100 can be integrally molded through the molding mechanism 1900 . Specifically, the first guide parts 1730 and 1740 may be formed through the first forming mechanism 1920 , and the second guide parts 1710 and 1720 may be formed through the second forming mechanism 1910 .

The guide part 1700 may be extended in the optical axis direction. The guide part 1700 can guide the movement of the first lens assembly 1200 and the second lens assembly 1300 in the optical axis direction. The guide part 1710 may include first guide parts 1730 and 1740 and second guide parts 1710 and 1720 .

The guide part 1710 may include first guide parts 1730 and 1740 . The first guide parts 1730 and 1740 may be symmetrical with the second guide parts 1710 and 1720 with respect to the optical axis. The first guide parts 1730 and 1740 may be formed in corresponding shapes at positions corresponding to the second guide parts 1710 and 1740 . The first guide parts 1730 and 1740 may be extended in the optical axis direction. The first guide parts 1730 and 1740 may include first grooves 1732 and 1742 .

The first grooves 1732 and 1742 may face the first side 1230 of the first lens assembly 1200 . The first grooves 1732 , 1742 can face the third grooves 1232 , 1234 of the first side 1230 of the first lens assembly 1200 . The first grooves 1732 , 1742 may contact at least a portion of the first guide balls 1810 , 1820 . One of the first grooves 1732 and 1742 contacts one of the first guide balls 1810 and 1820 at one point, and the other one of the first grooves 1732 and 1742 contacts the first guide balls 1810 and 1820. You can make two-point contact with one of the others.

The first grooves 1732 and 1742 may face the first side 1330 of the second lens assembly 1300 . The first grooves 1732 and 1742 can face the fifth grooves 1332 and 1334 of the first side 1330 of the second lens assembly 1300 . The first grooves 1732 , 1742 may contact at least a portion of the third guide balls 1850 , 1860 . One of the first grooves 1732 and 1742 contacts one of the third guide balls 1850 and 1860 at one point, and the other one of the first grooves 1732 and 1742 contacts the third guide balls 1850 and 1860. can be in contact with one of the two points.

The first guide parts 1730 and 1740 may include a 1-1 guide part 1730 . The 1-1 guide part 1730 may be separated from the 1-2 guide part 1740 in a direction perpendicular to the optical axis. The 1-1 guide part 1730 may be arranged on the 1-2 guide part 1740 . The length of the 1-1 guide portion 1730 in the optical axis direction may correspond to the length of the 1-2 guide portion 1740 in the optical axis direction. The 1-1 guide part 1730 may be extended in the optical axis direction. The length of the 1-1 guide part 1730 in the direction perpendicular to the optical axis direction may be longer than the length of the 1-2 guide part 1740 in the direction perpendicular to the optical axis direction.

The 1-1 guide part 1730 may include a 1-1 groove 1732 . The 1-1 groove 1732 may face the 3-1 groove 1232 of the first side surface 1230 of the first lens assembly 1200 . At least a portion of the 1-1 guide ball 1810 may be disposed in the 1-1 groove 1732 . 10 to 15, the 1-1 groove 1732 may be formed in a 'V' shape. 10 to 15, the 1-1 groove 1732 may contact the 1-1 guide ball 1810 at two points. Alternatively, referring to FIGS. 8, 9 and 16, the 1-1 groove 1732 may be formed in a 'U' shape or an 'L' shape. 8, 9 and 16, the 1-1 groove 1732 may contact the 1-1 guide ball 1810 at one point.

The 1-1 groove 1732 may face the 5-1 groove 1332 of the first side surface 1330 of the second lens assembly 1300 . At least a portion of the 3-1 guide ball 1850 may be disposed in the 1-1 groove 1732 . 10 to 15, the 1-1 groove 1732 can contact the 3-1 guide ball 1850 at two points. 8, 9 and 16, the 1-1 groove 1732 may contact the 3-1 guide ball 1850 at one point.

The first guide parts 1730 and 1740 may include a 1-2 guide part 1740 . The 1-2 guide part 1740 may be separated from the 1-1 guide part 1730 in a direction perpendicular to the optical axis. The 1-2 guide part 1740 may be arranged under the 1-1 guide part 1730 . The length of the 1-2 guide part 1740 in the optical axis direction may correspond to the length of the 1-1 guide part 1730 in the optical axis direction. The 1-2 guide part 1740 may be extended in the optical axis direction. The length of the 1-2 guide part 1740 in the direction perpendicular to the optical axis direction may be shorter than the length of the 1-1 guide part 1730 in the direction perpendicular to the optical axis direction.

The 1-2 guide part 1740 may include a 1-2 groove 1742 . The 1-2 groove 1742 may face the 3-2 groove 1234 of the first side surface 1230 of the first lens assembly 1200 . At least a portion of the 1-2 guide ball 1820 may be disposed in the 1-2 groove 1742 . 10 to 15, the first-second groove 1742 may be formed in a 'U' shape or an 'L' shape. 10-15, the 1-2 groove 1742 may contact the 1-2 guide ball 1820 at one point. Alternatively, referring to FIGS. 8, 9 and 16, the 1-2 groove 1742 may be formed in a 'V' shape. 8, 9 and 16, the 1-2 groove 1742 may contact the 1-2 guide ball 1820 at two points.

The 1-2 groove 1742 may face the 5-2 groove 1334 of the first side surface 1330 of the second lens assembly 1300 . At least a portion of the 3-2 guide ball 1860 may be disposed in the 1-2 groove 1742 . 10-15, the 1-2 groove 1742 can contact the 3-2 guide ball 1860 at one point. Alternatively, referring to FIGS. 8, 9 and 16, the 1-2 groove 1742 can contact the 3-2 guide ball 1860 at two points.

The guide part 1710 may include second guide parts 1710 and 1720 . The second guide parts 1710 and 1720 may be symmetrical with the first guide parts 1730 and 1740 with respect to the optical axis. The second guide parts 1710 and 1720 may be formed at positions corresponding to the first guide parts 1730 and 1740 in shapes corresponding to each other. The second guide parts 1710 and 1720 may be extended in the optical axis direction. The second guide parts 1710 and 1720 may include second grooves 1712 and 1722 .

The second grooves 1712 and 1722 can face the second side 1240 of the first lens assembly 1200 . The second grooves 1712 and 1722 can face the fourth grooves 1242 and 1244 of the second side 1240 of the first lens assembly 1200 . The second grooves 1712, 1722 may contact at least a portion of the second guide balls 1830, 1840. One of the second grooves 1712 and 1722 contacts one of the second guide balls 1830 and 1840 at one point, and the other one of the second grooves 1712 and 1722 contacts the other of the second guide balls 1830 and 1840. can be in contact with one of the two points.

The second grooves 1712 and 1722 may face the second side 1340 of the second lens assembly 1300 . The second grooves 1712 and 1722 may face sixth grooves 1342 and 1344 on the second side 1340 of the second lens assembly 1300 . The second grooves 1712, 1722 may contact at least a portion of the fourth guide balls 1870, 1880. One of the second grooves 1712 and 1722 contacts one of the fourth guide balls 1870 and 1880 at one point, and the other one of the second grooves 1712 and 1722 contacts the fourth guide balls 1870 and 1880. is in contact with one of the two points,
The second guide parts 1710 and 1720 may include a 2-1 guide part 1710 . The 2-1 guide part 1710 may be separated from the 2-2 guide part 1720 in a direction perpendicular to the optical axis. The 2-1 guide part 1710 may be arranged on the 2-2 guide part 1720 . The length of the 2-1 guide part 1710 in the optical axis direction may correspond to the length of the 2-2 guide part 1720 in the optical axis direction. The 2-1 guide part 1710 may be extended in the optical axis direction. The length of the 2-1 guide part 1710 in the direction perpendicular to the optical axis direction may be longer than the length of the 2-2 guide part 1720 in the direction perpendicular to the optical axis direction.

The 2-1 guide part 1710 may include a 2-1 groove 1712 . The 2-1 groove 1712 may face the 4-1 groove 1242 of the second side 1240 of the first lens assembly 1200 . At least a portion of the 2-1 guide ball 1830 may be disposed in the 2-1 groove 1712 . 10 to 15, the 2-1 groove 1712 may be formed in a 'V' shape. 10 to 15, the 2-1 groove 1712 may contact the 2-1 guide ball 1830 at two points. Alternatively, referring to FIGS. 8, 9 and 16, the 2-1 groove 1712 may be formed in a 'U' shape or an 'L' shape. 8, 9 and 16, the 2-1 groove 1712 may contact the 2-1 guide ball 1830 at one point.

The 2-1 groove 1712 may face the 6-1 groove 1342 of the second side 1340 of the second lens assembly 1300 . At least a portion of the 4-1 guide ball 1870 may be disposed in the 2-1 groove 1712 . 10-15, the 2-1 groove 1712 can contact the 4-1 guide ball 1870 at two points. 8, 9 and 16, the 2-1 groove 1712 can contact the 4-1 guide ball 1870 at one point.

The second guide parts 1710 and 1720 may include a 2-2 guide part 1720 . The 2-2 guide part 1720 may be separated from the 2-1 guide part 1710 in a direction perpendicular to the optical axis. The 2-2 guide part 1720 may be arranged under the 2-1 guide part 1710 . The length of the 2-2 guide part 1720 in the optical axis direction may correspond to the length of the 2-1 guide part 1710 in the optical axis direction. The 2-2 guide part 1720 may be extended in the optical axis direction. The length of the 2-2 guide part 1720 in the direction perpendicular to the optical axis direction may be shorter than the length of the 2-1 guide part 1710 in the direction perpendicular to the optical axis direction.

The 2-2 guide part 1720 may include a 2-2 groove 1722 . The 2-2 groove 1722 may face the 4-2 groove 1244 of the second side 1240 of the first lens assembly 1200 . At least a portion of the 2-2 guide ball 1840 may be disposed in the 2-2 groove 1722 . 10 to 15, the 2-2 groove 1722 may be formed in a 'U' shape or an 'L' shape. 10-15, the 2-2 groove 1722 can contact the 2-2 guide ball 1840 at one point. Alternatively, referring to FIGS. 8, 9 and 16, the 2-2 groove 1722 may be formed in a 'V' shape. 8, 9 and 16, the 2-2 groove 1722 may contact the 2-2 guide ball 1840 at two points.

The 2-2 groove 1722 may face the 6-2 groove 1344 of the second side 1340 of the second lens assembly 1300 . At least a portion of the 4-2 guide ball 1880 may be disposed in the 2-2 groove 1722 . 10-15, the 2-2 groove 1722 can contact the 4-2 guide ball 1880 at one point. Alternatively, referring to FIGS. 8, 9 and 16, the 2-2 groove 1722 can contact the 4-2 guide ball 1880 at two points.

Camera module 1010 may include guide balls 1800 . A guide ball 1800 may be disposed between the first lens assembly 1200 and the guide part 1700 . A guide ball 1800 may be disposed between the second lens assembly 1300 and the guide part 1700 .

The guide ball 1800 may include first guide balls 1810 and 1820 . The first guide balls 1810 and 1820 may be arranged between the first side surface 1230 of the first lens assembly 1200 and the first guide parts 1730 and 1740 .

The first guide balls 1810 and 1820 may include a 1-1 guide ball 1810 . The 1-1 guide ball 1810 is disposed between the 1-1 groove 1732 of the 1-1 guide part 1730 and the 3-1 groove 1232 of the first side surface 1230 of the first lens assembly 1200. can be done. The 1-1 guide ball 1810 may include two guide balls 1812 and 1814 separated from each other in the optical axis direction.

The first guide balls 1810 and 1820 may include 1-2 guide balls 1820 . The 1-2 guide ball 1820 is disposed between the 1-2 groove 1742 of the 1-2 guide part 1740 and the 3-2 groove 1234 of the first side surface 1230 of the first lens assembly 1200. can be done. The 1-2 guide balls 1820 may include two guide balls 1822 and 1824 separated from each other in the optical axis direction.

The guide ball 1800 may include second guide balls 1830 and 1840 . The second guide balls 1830 and 1840 may be arranged between the second side 1240 of the first lens assembly 1200 and the second guide parts 1710 and 1720 .

The second guide balls 1830 and 1840 may include a 2-1 guide ball 1830 . The 2-1 guide ball 1830 is disposed between the 2-1 groove 1712 of the 2-1 guide part 1710 and the 4-1 groove 1242 of the second side surface 1240 of the first lens assembly 1200. can be done.

The second guide balls 1830 , 1840 may include a 2-2 guide ball 1840 . The 2-2 guide ball 1840 may face the 2-2 groove 1722 of the 2-2 guide part 1720 and the 4-2 groove 1244 of the second side surface 1240 of the first lens assembly 1200 .

The guide ball 1800 may include third guide balls 1850 and 1860 . The third guide balls 1850 and 1860 may be arranged between the first side surface 1330 of the second lens assembly 1300 and the first guide parts 1730 and 1740 .

The third guide balls 1850 and 1860 may include the 3-1 guide ball 1850 . The 3-1 guide ball 1850 is disposed between the 1-1 groove 1732 of the 1-1 guide part 1730 and the 5-1 groove 1332 of the first side surface 1330 of the second lens assembly 1300. can be done.

The third guide balls 1850 , 1860 may include a 3-2 guide ball 1860 . The 3-2 guide ball 1860 is disposed between the 1-2 groove 1742 of the 1-2 guide part 1840 and the 5-2 groove 1334 of the first side surface 1330 of the second lens assembly 1300. can be done.

The guide ball 1800 may include fourth guide balls 1870 and 1880 . The fourth guide balls 1870 and 1880 may be arranged between the second side 1340 of the second lens assembly 1300 and the second guide parts 1710 and 1720 .

The fourth guide balls 1870 , 1880 may include the 4-1 guide ball 1870 . The 4-1 guide ball 1870 is disposed between the 2-1 groove 1712 of the 2-1 guide part 1710 and the 6-1 groove 1342 of the second side surface 1340 of the second lens assembly 1300. can be done. The 4-1 guide ball 1870 may include two guide balls 1872 and 1874 separated from each other in the optical axis direction.

The fourth guide balls 1870 , 1880 may include a 4-2 guide ball 1880 . The 4-2 guide ball 1880 is disposed between the 2-2 groove 1722 of the 2-2 guide part 1720 and the 6-2 groove 1223 of the second side surface 1240 of the second lens assembly 1300. can be done. The 4-2nd guide ball 1800 may include two guide balls 1882 and 1884 spaced apart from each other in the optical axis direction.

Although the embodiments of the present invention have been described with reference to the accompanying drawings, those skilled in the art to which the present invention pertains will appreciate that the present invention can be implemented without changing its technical idea or essential features. It should be understood that it can be embodied in other specific forms. Accordingly, the above-described embodiments are to be considered in all respects as illustrative and not restrictive.

Claims (10)

housing;
a lens assembly disposed in said housing;
a first driving unit disposed on the lens assembly;
a second driving part disposed in the housing and facing the first driving part;
a sensor magnet disposed on the lens assembly and extending in an optical axis direction; and a plurality of sensors disposed on the housing and facing the sensor magnet;
The sensor magnet is overlapped in a first direction perpendicular to the lens assembly and the optical axis direction and in a second direction perpendicular to the optical axis direction and the first direction. . 2. The camera module according to claim 1, wherein the length of the sensor magnet in the optical axis direction is greater than the movement stroke of the lens assembly. 2. The camera module of claim 1, wherein the plurality of sensors includes a first sensor and a second sensor separated from the first sensor in the optical axis direction. 4. The method of claim 3, wherein the sum of the distance between the first sensor and the second sensor and the movement stroke of the lens assembly corresponds to the length of the sensor magnet in the optical axis direction. camera module. 2. The camera module of claim 1, comprising a first yoke positioned between the lens assembly and the sensor magnet. 6. The camera module according to claim 5, wherein the first yoke encloses a surface of the sensor magnet excluding a surface facing the plurality of sensors. the lens assembly includes a first lens assembly and a second lens assembly disposed on one side of the first lens assembly;
the sensor magnet includes a first sensor magnet disposed on the first lens assembly and a second sensor magnet disposed on the second lens assembly;
2. The camera module of claim 1, wherein the first sensor magnet and the second sensor magnet are spaced apart in a first direction perpendicular to the optical axis and have lengths corresponding to each other. the first driving unit includes a 1-1 driving unit arranged in the first lens assembly and a 1-2 driving unit arranged in the second lens assembly;
8. The apparatus of claim 7, wherein the second driving section includes a 2-1 driving section facing the 1-1 driving section and a 2-2 driving section facing the 1-2 driving section. The camera module. a second yoke disposed between the lens assembly and the first drive;
The second yoke includes a 2-1 yoke disposed between the 1-1 driving section and the first lens assembly, and a yoke between the 1-2 driving section and the second lens assembly. 9. The camera module of claim 8, including a 2-2 yoke positioned therebetween. housing;
a lens assembly disposed in said housing;
a first driving unit disposed on the lens assembly;
a second driving part disposed in the housing and facing the first driving part;
a sensor magnet disposed on the lens assembly and extending in an optical axis direction; and a plurality of sensors disposed on the housing and facing the sensor magnet;
The plurality of sensors includes a first sensor and a second sensor separated from the first sensor in the optical axis direction;
The camera module, wherein the sum of the distance between the first sensor and the second sensor and the movement stroke of the lens assembly corresponds to the length of the sensor magnet in the optical axis direction.

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